Heel-nailing machine



Marh 4,1924. 1,485,993

F. A. REARDQN HEEL mun-1m momma Filed Dec. 8. 1920 2 Sheets-Sheet 1 I M i 11 I; all

ATTORNEY March 4 1925!. F. A. REARDON HEEL NAILING momma Filed- Dec. 8. 192: 67 6 $768 67 a 42/ a v 5 j Z o 1 a ll 2 W! 1 49 W 1 I I I) Z H 1 n lg'gfii'Afl INVENTOR vT"1:% d fffzairdon I ATTORNEY Patented Mar. 4 1924.

UNETED STATEE RA'EEN'E orrice- FRED A. REARDON, 0F BREDGEPOR-T, CONNECTICUT, ASSIGNOR TO HAlVIEL SHOE MA.- CHINERY COMPANY, OF BRIDGEPOBT, CONNECTICUT, A CORPORATION OF MASSA- CHUSETTS.

HEEL-MAILING MACHINE.

Application filed December 8, 1920. Serial No. 429,095.

To all whom it may concern:

Be it known that I, FRED A. REARDON, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in HeeLNailing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machines for use in nailing heels on footwear and is more particularly designed for use where the nails are driven from within the shoe.

One feature of this invention relates to means whereby the spacing of the nails and the direction in which they are driven. may .be adjusted to suit varying sizes and shapes of heels.

A further feature ofthe invention relates to the configuration'of the work engaging ends of the nail tubes whereby the nails are somewhat counter-sunk when driven.

For a more complete understanding of this invention together with further objects and advantageous details and combinations of parts, reference may be had to the accompanying drawings illustrating an embodiment thereof in which,

Fig. 1, is a partial side elevation of a heel nailing machine employing this invention showing a shoe partly broken away in position therein. i r

Fig. 2, is a side elevation ofthe shoe sup porting jack assembled, on the. machine, other parts of which are shown in section.

Fig. 3, is a similar view with the jack shown partly in vertical section.

Fig. 4, is a sectional detail of a nail-driver carrying block taken substantially on the axis of the driver-securing set-screw.

Fig. 5, is a horizontal section on line 55 of Fig. 2, and,

Fig. 6, is a plan of the jack head.

At A in Fig. 1, is shown a machine pedestal having journaled from front to rear I therein adjacent 'its base, an actuating shaft 1 having a driving pulley 2 at the rear of the machine. Fixed at the forward end of this shaft is a crank 3 havinga connecting rod 4 pivoted thereto and to the lower end of aplunger 5 vertically slidable in a guideway 6. At 7 is shown a forwardly prpjecting table havin a slideway formed 1n vits upper surface for the reception of shoe neath the heel clamp as shown in Fig. 1, or

it may be moved in the slideway into c0 operative relation with the loading block 13 from which nails may be fed into the nail tubes in the jack as presently described.

Referring more particularly to Figs. 2 and 3, jack8is provided with a handle 15 having pivoted thereon .a lever 16 with an upwardly directed finger piece 17 normally held outwardly from the handle by .means of a spring 18. .Theouter end of the lever 1 16 isslotted andtakes over a transverse pin 19 fixed in a latch bolt 20. slidable vertically in the base of the jack and engagable in a perforated latch plate 21 fixed. at the outer end of thetable 7 Thislatch mechanism.

serves to retain the jack in proper position relative to the heelclamp during the nail driving operation. The upper end of the jack carries a head 22 having a plurality of slots or slotted openings as shown at 23 and 24. A series of detachable plates 25 having circular openings 26 variously spaced along the slots or slotted openings be interchangeably fixed on the upper face of the head 22 by means ofv screws 27 and 28.

Seated within the openings 26 are the upper ends 29 of nail tubes 30, each nail tube being fixed at 31"by a threaded engagement therewith in the upper end of a driver guide member 32. Below the portion 31 each guide 32 is formed with side bars 33 and 34, as shown in Fig. 4, between which is slidably guided a block 35 having flanges36 and 37. engaging one edge of each of the bars .33 and 34, and a plate 38 over-lapping the opposite edgesof the bars 33 and 34 is made fast to the block 35 by screws 39 and 40. Block 35 has a threaded perforation at 41 for the reception of the lower threaded end of a nail driver 42 which; projects within the nail tube 30 and is reciprocable' therein screw 43 acting against a brass block 43 retains the driver 42 in adjusted position. The lower ends of the side bars 33 and 34 merge in a solid extension 44 having formed at its lower end a series of rack teeth 45 engageable with a worm 46 of high pitch car? ried by an adjusting screw 47, the inner end of which is threaded with a very low pitch in a perforation 48 in the body of the jack. Each screw 47 has a knurled head 49 by which it may be turned. In order to properly guide the lower ends of the driver guides as adjusted by means of screws 47, jack 8 is provided with a series of pa rs of outstanding fins 50 and 51 between which the portions 44 may slide, a guide screw 52 passing through each fin 51 projecting into a guide slot 53 in one face of each member As shown in Fig. 3, jack 8 has a central vertical perforation 54 merging at its lower end in an enlarged recess 5!". Slidably carried within the perforation is a nail driver actuating rod 56 having a head 57 on its lower end slidable within the recess When the jack is in nail driving position the head 57 is in alignment with the plunger 5 so that on actuation of the latter the head 57-.is impinged thereby and the rod 56 driven upwardly. Head 57 is screwed to the lower end of the rod 56 so that the relative positions of the parts may be adjusted to determine the length of stroke of the rod 56. The upper end of this rod is reduced in di ameter at 58 for the reception of a collar 59 which is retained in position by means of a nut 60 threaded on a still further reduced extremity 61 of the rod 56. As shown more particularly in Fig. 5, collar 59 has a series of pairs of outwardly emending cars 62 corresponding in number to the number of nail tubes and nail drivers, a link 63 being pivoted at one end between each pair of cars and at its other end between a similar pair of ears on each of the blocks 35. By this means vertical reciprocation of the rod 56 will impart reciprocation to the blocks 35 and consequently impart driving and retracting strokes to the naildrivers 42 simultaneously, regardless of the spacing of the nail tubes or their angular relationship.

In order to provide a suitablepivotal connection for the upper ends of the nail tubes within.'theplate25,v and also to provide means whereby the nails as driven may be counter-sunk somewhat in the work. the ends of the nail tubes at 29 are formed substantially. spherical each having a central perforation as shown at 64 6) forming the upper end of the nailreceiving opening. The upper ends ofthe slots and openings 23 and 24 are widened to form bearings against which these spherical heads are sup- I ported, to retain their upper ends projected anietrically opposite sides of the perfora: tions 64 and closely adjacent thereto, these substantially spherical ends are recessed as shown at 65 and 66, this construction prodficing a tapered end having curved work indenting spurs at 67 and 68 on opposite sides of the nail opening which under the pressure exerted by the heel clamp penetrate the surface of the work so that the end of the nail tube indents the surface thereof at the point where the heads of the nails will be driven at the end of the driving stroke. This construction causes the nails when driven to be slightly counter-sunk so that there is no danger of the nail heads projecting above the surface of the sole and annoying the wearer of the shoe. The recesses 65 and (56 form convenient tool engaging portions by which the nail tube may be turned within the threadedend of the guide 32 for adjustment or removal.

In the operation of this machine, the ack, with no shoe thereon, is unlatched and pushed rearwaii'dly into cooperative relation with the nail loading block 13 whereupon a nail is fed head downwardly into each of the nail tubes, the head resting on the upper end of the corresponding nail driver. The jack is then moved forwardly and a shoe is placed thereon substantially as shown in Fig. 1, the

heel clamp being brought downwardly to hold the heel in proper position and to press the shoe downwardly to cause the ends of the nail tubes to indent the sole surface as above described. On actuation of the crank 23, the plunger 5 is then caused to impinge on the head 57, raising the rod 56 and, through its connections with the nail drivers imparting the driving stroke thereto. Further motion of the crank 3 retracts the plunger 5 and in its fully retracted position the machine-stops. This allows the rod56 and the drivers to descend by gravity, and re tracts the plunger 5 sufficiently to allow the jack to be moved in its slideway into nail loading position for a subsequent operation. On raising the bracket 9 to release the heel clamping members the nailed shoe may be removed.

In order to position the nails forv various sizesof shoes alplurality of plates 25 are provided having openings for the spherical ends of the nail tubes differently spaced therein, these spherical ends of the nail tubes being readily centered in theopenings in the nail plate as it is placedin position. In order to adjust the direction in which the nails shall bedriven, the angular relation of thenail tubes may be varied within the necessary limits by turning the adjusting by reciprocation of the block 35. A set above the upper surface of plate 25. At discrews 47. These various adjustments can the same nailing jack for a great variety of sizes and styles of shoes and eliminates the necessity, often arising when using non-adjustable nail driving blocks, of omitting one or more of the nails which would otherwise be driven in such relationship to the heel as to cause danger of splitting, or of using nails of various lengths in the difierent nail tubes.

Having thus described an embodiment of this invention, it should be evident to those skilled in the art that many changes and modifications might be made therein Without departing from its spirit or scope as defined by the appended claims.

I claim 1. In a heel-nailing machine, a shoe-supporting jack, a plurality of nail driving mechanisms 7 disposed within said jack, means for simultaneously actuating said mechanisms, and means for angularly adjusting each of said mechanisms with respect to the others to vary the spacing of the nails.

2. In a heel-nailing machine, a shoe-supporting jack, a plurality of nail driving mechanisms disposed Within said jack, means for simultaneously actuating said mechanisms, and manually operated adjusting means for determining the relative directions of said mechanisms and thereby the directions in which the nails are driven.

3. In a heel-nailing machine, a shoe-supporting jack, a nail tube disposed in fixed position within said jack, and manually operated means for angularly adjusting said tube from one fixed position to another to determine the driving direction of the nail.

l. In a heel-nailing machine, a shoe-supporting jack, a plurality of nail drivers secured in fixed positions within said jack, and means for angularly adjusting the fixed positions of each of said drivers independently of the others to determine the driving angle thereof.

5. In a nailing machine, a plurality of nail tubes having substantially spherical ends, a plate having bearing openings engageable With said ends for spacingthesame, and means for independently adjusting the angular relationship of said tubes to said late.

p 6. In a nailing machine, a plurality of nail tubes having substantially spherical work-engaging ends, a plate having bearing openings engageable with said ends for spacing the same, means for adjusting the relative spacing of thework-engaging ends of said tubes, a nail driver reciprocable in each nail tube, and means for simultaneously actuating said drivers.

7. In a nailing machine, a plurality of nail tubes, a plate having openings in each of which the delivery end of a nail tube is pivoted, and means for swinging each of said tubes about its pivot independently of the others.

8. In a nailing machine, a nail tube pivoted adjacent one end, a driver reciprocable in said tube, a driver guide fixed to the free end of said tube and carrying rack teeth, and a worm engaging said rack teeth and by the turning of which said nail tube may be swung on its pivot.

9. In a nailing machine, a work-supporting jack, a nail-tube having a substantially spherical work-engaging end, and a bearingseat provided by said jack affording a pivotal support for the delivery end of said nail-tube. I I In testimony whereof, I have signed my name to this specification.

FRED A. REARDON. 

